This demonstration is designed to demonstrate the procedures that municipal water plants use to purify water for drinking. Students will discover that water treatment plants typically clean water by taking it through the processes of aeration, coagulation, sedimentation, filtration, and disinfection. They also learn that water in lakes, rivers, and swamps often contains impurities that make it look and smell bad. The water may also contain bacteria and other microbiological organisms that can cause disease. Consequently, water from surface sources must be cleaned before it can be consumed by people.

Intended for grade levels:

Primary (K-2)

Intermediate (3-5)

Middle (6-8)

Type of resource:

For the classroom:

Presentation / Demo

Subject:

Environmental science

Hydrology

Technical requirements:

No specific technical requirements, just a browser required

Cost / Copyright:

No cost

Information presented on this WWW site is considered public information and may be distributed or copied. The U.S. Government retains a nonexclusive, royalty-free license to publish or reproduce these documents, or allow others to do so, for U.S. Government purposes. These documents may be freely distributed and used for non-commercial, scientific and educational purposes. Commercial use of the documents available from this server may be protected under the U.S. and Foreign Copyright Laws. Individual documents on this server may have different copyright conditions, and that will be noted in those documents.

DLESE Catalog ID:DLESE-000-000-006-432

Educational standards:

National Science Education Standards (NSES):

K-4:

F - Science in personal / social perspectives:

Personal health

Types of resources

5-8:

F - Science in personal / social perspectives:

Populations, resources, environments

Sci. / tech. in society

Related resources:

This resource is referenced by
'Ground Water and Drinking Water, Kid's Stuff'